Patent US4870957A successfully refreshed from Google Patents.
Patent US3027477A successfully refreshed from Google Patents.
US3027477A
Expired / Lapsed
US
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Endoscopes
Assignee: Individual
•
Filing: 1959-01-09
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Granted: 1962-03-27
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Expires: 1979-01-09
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
H; H04; H04N; H04N3/00; A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00165; A61B1/04; A61B1/05; G; G01; G01M; G01M3/00; G01M3/005; G01M3/38; G02; G02B; G02B23/00; G02B23/24; G02B23/26; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/50; H01J2231/00; H01J2231/50; H01J2231/50005; H01J2231/5001; H01J2231/50015; H01J2231/50057; H01J2231/50068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1751584A
Cited
US2091152A
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US2189988A
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US2354591A
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US2495697A
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US2458205A
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US2761084A
Cited
US2825260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |